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Archive::Tar versions before 3.08 for Perl improperly handles symbolic links during tar extraction. Its special-file extraction routine passes an archive-controlled link target directly to the operating system symlink creation primitive without rejecting absolute paths or parent-directory traversal segments. Secure-extraction validation applied to regular files does not protect symlink targets. A crafted archive can therefore create a symlink within the extraction tree that resolves to a location outside that tree.
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No public exploit code observed for this vulnerability.
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29 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An archive-extraction symlink or hardlink handling vulnerability in Perl.
A vulnerability tracked as CVE-2026-42496 addressed by a Huawei EulerOS security update for the perl-archive-tar packages. The content rates it CVSS v3.0 9.1 (network-accessible, low complexity, no privileges or user interaction required; high confidentiality and integrity impact).
A remotely exploitable, low-complexity vulnerability requiring no privileges or user interaction, with high confidentiality and integrity impact, affecting Perl Archive::Tar-related packages on Huawei EulerOS 2.0.
A remotely exploitable, low-complexity vulnerability with no required privileges or user interaction that can result in high confidentiality and integrity impact, affecting perl-Archive-Tar packages on ZTE CGSL Main 7.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.